Figure 3. Accumulation of nitrite and vasodilation of the porcine femoral artery for forward and reverse flow.
A, accumulation of NO (nitrite) concentration over time for a continuous flow set-up in the right and left femoral arteries (forward • and reverse flow ◊, respectively). The asterisk denotes the statistical significance between forward flow and reverse flow (P < 0.05) at various time points. The increase of NO concentration over time of both forward and reverse flow was statistically significant (P < 0.001). B, the degree of vasodilatation expressed as the diameter ratio (D/D0) increased with time in continuous flow in femoral arteries in both forward and reverse flow (P < 0.001). D is the diameter at a given flow and D0 is the diameter at zero flow with same pressure. The asterisk indicates statistical significance between forward flow and reverse flow at the respective time points (P < 0.05).